Aerobic fitness level typical of elite athletes is not associated with even faster VO2 kinetics during cycling exercise
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Data
2008-03-01
Autores
Figueira, Tiago R. [UNESP]
Caputo, Fabrizio [UNESP]
Machado, Carlos E. P. [UNESP]
Denadai, Benedito S. [UNESP]
Título da Revista
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Título de Volume
Editor
Journal Sports Science & Medicine
Resumo
The aim of this study was to address the question if the VO2 kinetics is further improved as the aerobic training status increases from trained to elite level athletes. Maximal oxygen uptake (VO(2)max), work-rate associated to VO(2)max (IVO(2)max) and VO2 kinetics of moderate (Mod) and maximal exercise (Max) were determined in fifty-five subjects. Then, they were assigned into three groups: low (LF), intermediate (IF) and high (HF) aerobic fitness level. In average, the VO(2)max of LF, IF and HF groups were, respectively, 36.0 +/- 3.1, 51.1 +/- 4.5 and 68.1 +/- 3.9 ml . kg . min(-1) (p <= 0.05 among each other). VO2 kinetics mean response time of both exercise intensities were significantly faster (p <= 0.05) in HF (Mod, 27.5 +/- 5.5 s; Max, 32.6 +/- 8.3 s) and IF (Mod, 25.0 +/- 3.1 s; Max, 42.6 +/- 10.4 s) when compared to LF (Mod, 35.7 +/- 7.9 s; Max: 57.8 +/- 17.8 s). We can conclude that VO2 kinetics is improved as the fitness level is increased from low to intermediate but not further improved as the aerobic fitness level increases from intermediate to high.
Descrição
Palavras-chave
oxidative metabolism, VO2 kinetics, aerobic training
Como citar
Journal of Sports Science and Medicine. Bursa: Journal Sports Science & Medicine, v. 7, n. 1, p. 132-138, 2008.